{"paper":{"title":"Studying the [OIII]$\\lambda$5007A emission-line width in a sample of $\\sim$80 local active galaxies: A surrogate for $\\sigma_{\\star}$?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Daeseong Park, Donald Loveland, Edward Donohue, Kelsi Flatland, Maren Cosens, Mariana S. Lazarova, Matthew A. Malkan, Matthew W. Auger, Nathan Milgram, Sean Lewis, S. Komossa, Tommaso Treu, Vardha N. Bennert","submitted_at":"2018-08-14T18:00:01Z","abstract_excerpt":"For a sample of $\\sim$80 local ($0.02 \\leq z \\leq 0.1$) Seyfert-1 galaxies with high-quality long-slit Keck spectra and spatially-resolved stellar-velocity dispersion ($\\sigma_{\\star}$) measurements, we study the profile of the [OIII]$\\lambda$5007A emission line to test the validity of using its width as a surrogate for $\\sigma_{\\star}$. Such an approach has often been used in the literature, since it is difficult to measure $\\sigma_{\\star}$ for type-1 active galactic nuclei (AGNs) due to the AGN continuum outshining the stellar-absorption lines. Fitting the [OIII] line with a single Gaussian "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04821","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}